Orthogonal and non-orthogonal cooperative protocols in WLANs

Authors:
Jun Chen;Karim Djouani;Kamel Barkaoui
Affiliations:
CEDRIC-CNAM and LISSI Lab., University Paris-Est, Paris, France;F'SATIE/TUT, Pretoria, South Africa;CEDRIC-CNAM Paris, France
Venue:
VECoS'09 Proceedings of the Third international conference on Verification and Evaluation of Computer and Communication Systems
Year:
2009

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Abstract

The two main cooperative protocols inWLANs are the orthogonal and non-orthogonal ones. We consider this two different cooperative protocols with the amplify-and forward (AF) and decode-and-forward (DF) strategies. In each case, we study the information theoretic performance. Simulation results show that the non-orthogonal cooperative protocol achieves an optimal performance than the orthogonal one. Furthermore, using space-time coding in non-orthogonal protocols provides the additional coding diversity gains in the transmission.